Finding the Fourth Proportional to 6,438,528,449.60, 9,656,896,879.20 and 2,076,901,620.80
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Solution
The fourth proportional to 6,438,528,449.60, 9,656,896,879.20 and 2,076,901,620.80 is: 3,115,063,470.99
Step by Step Solution
- Step 1: Write the proportion equation
6,438,528,449.60 : 9,656,896,879.20 = 2,076,901,620.80 : x - Step 2: Convert to fraction form
6,438,528,449.60/9,656,896,879.20 = 2,076,901,620.80/x - Step 3: Cross multiply
6,438,528,449.60x = 9,656,896,879.20 × 2,076,901,620.80 - Step 4: Simplify right side
6,438,528,449.60x = 20,056,424,780,308,942,848 - Step 5: Solve for x
x = 20,056,424,780,308,942,848/6,438,528,449.60 - Step 6: Final answer
x = 3,115,063,470.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.